Site-controlled formation of InAs/GaAs quantum-dot-in-nanowires for single photon emitters

J. Tatebayashi; Y. Ota; S. Ishida; M. Nishioka; S. Iwamoto; Y. Arakawa

doi:10.1063/1.4731208

Site-controlled formation of InAs/GaAs quantum-dot-in-nanowires for single photon emitters

J. Tatebayashi, Y. Ota, S. Ishida, M. Nishioka, S. Iwamoto, Y. Arakawa

Research output: Contribution to journal › Article › peer-review

40 Citations (Scopus)

Abstract

We report the demonstration of site-controlled InAs/GaAs quantum dots (QDs) embedded in GaAs nanowires (NWs) by selective metalorganic chemical vapor deposition. InAs/GaAs quantum-dot-in-nanowires (QD-in-NWs) with various InAs thicknesses are realized on patterned GaAs(111)B substrates in the form of InAs/GaAs heterostructures and identified by structural analyses using scanning transmission electron microscopy and photoluminescence characterization. Sharp excitonic emission peaks at 10 K from single QD-in-NWs with the narrowest exciton linewidth of 87 μeV are observed. Light emission from the single QD-in-NW shows photon antibunching, along with biexciton-exciton cascaded emission process, which evidences single photon emission from high-quality QD-in-NWs.

Original language	English
Article number	263101
Journal	Applied Physics Letters
Volume	100
Issue number	26
DOIs	https://doi.org/10.1063/1.4731208
Publication status	Published - 2012 Jun 25
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1063/1.4731208

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title = "Site-controlled formation of InAs/GaAs quantum-dot-in-nanowires for single photon emitters",

abstract = "We report the demonstration of site-controlled InAs/GaAs quantum dots (QDs) embedded in GaAs nanowires (NWs) by selective metalorganic chemical vapor deposition. InAs/GaAs quantum-dot-in-nanowires (QD-in-NWs) with various InAs thicknesses are realized on patterned GaAs(111)B substrates in the form of InAs/GaAs heterostructures and identified by structural analyses using scanning transmission electron microscopy and photoluminescence characterization. Sharp excitonic emission peaks at 10 K from single QD-in-NWs with the narrowest exciton linewidth of 87 μeV are observed. Light emission from the single QD-in-NW shows photon antibunching, along with biexciton-exciton cascaded emission process, which evidences single photon emission from high-quality QD-in-NWs.",

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T1 - Site-controlled formation of InAs/GaAs quantum-dot-in-nanowires for single photon emitters

AU - Tatebayashi, J.

AU - Ota, Y.

AU - Ishida, S.

AU - Nishioka, M.

AU - Iwamoto, S.

AU - Arakawa, Y.

PY - 2012/6/25

Y1 - 2012/6/25

N2 - We report the demonstration of site-controlled InAs/GaAs quantum dots (QDs) embedded in GaAs nanowires (NWs) by selective metalorganic chemical vapor deposition. InAs/GaAs quantum-dot-in-nanowires (QD-in-NWs) with various InAs thicknesses are realized on patterned GaAs(111)B substrates in the form of InAs/GaAs heterostructures and identified by structural analyses using scanning transmission electron microscopy and photoluminescence characterization. Sharp excitonic emission peaks at 10 K from single QD-in-NWs with the narrowest exciton linewidth of 87 μeV are observed. Light emission from the single QD-in-NW shows photon antibunching, along with biexciton-exciton cascaded emission process, which evidences single photon emission from high-quality QD-in-NWs.

AB - We report the demonstration of site-controlled InAs/GaAs quantum dots (QDs) embedded in GaAs nanowires (NWs) by selective metalorganic chemical vapor deposition. InAs/GaAs quantum-dot-in-nanowires (QD-in-NWs) with various InAs thicknesses are realized on patterned GaAs(111)B substrates in the form of InAs/GaAs heterostructures and identified by structural analyses using scanning transmission electron microscopy and photoluminescence characterization. Sharp excitonic emission peaks at 10 K from single QD-in-NWs with the narrowest exciton linewidth of 87 μeV are observed. Light emission from the single QD-in-NW shows photon antibunching, along with biexciton-exciton cascaded emission process, which evidences single photon emission from high-quality QD-in-NWs.

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Site-controlled formation of InAs/GaAs quantum-dot-in-nanowires for single photon emitters

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